Planing machine



2 Sheets-Sheet 1.

(No Moliel.) i

I. H. VENN.

PLANING MACHINE. I No. 470,404. Patented Mar. 8, 1892.

Attorney;

wig/g6 (No Model.) 2 Sheets-Sheet -2.

I. H. VENN. PLANING MACHINE.

Patented Mar. 8. 1892. r

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NITED STATES ISAAC u. VENN, or

ATENT Prion.

HENRY CARSON, OF SAME PLACE.

PLANlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 470,404, dated March 8,1892.

Application filed January 6, 1891. Serial No. 376,881. (No model.)

To all whom it may concern:

Be it known that I, ISAAC H. YENN, a citizen of the United States,residing at Yonkers, \Vestchester county, New York, have inventedcertain new and useful Improvements in Planing-Machines, of which thefollowing is a specification.

My invention relates to hand jointers and planers; and it consists inmeans whereby to to insure the dressing of the opposite faces of thestrips to true planes and out of wind, as fully set forth hereinafter,and as illustrated in the accompanying drawings, in which- Figure 1 is alongitudinal sectional elevation of a jointer or hand-planer providedwith my improvements. Fig. 2 is a transverse sectional elevation. Fig. 3is a plan view of the side guide. Fig. 4 is a side view of said guidedetached. Fig. 5 is a view of the opposite :0 guide or. bracketdetached. Fig. 6 is a detached view illustrating a modification.

, A represents the frame of a hand-planer,

provided with an upper platform B, consisting of the fixed table 1 andthe diagonallyz 5 movable table 2, and between the tables revolves theshaft 3, carrying the planer-head 4, as usual. I

In using hand planers and jointers of the ordinary construction it isdifficult to secure 3o surfaces coinciding with flat planes when theboards are at all twisted, and this is specially the case when it isdesired to plane the surfaces of boards that are thicker at one edgethan at the other, and to overcome these de- 3 5 fects I combine withthe stationary and movable tables and cutter the parts which I will nowdescribe.

Above the movable table or above the space between the two tables Imount, adjustably,

a roller D, and I support the ends of this roller so that either or bothends may be elevated or depressed to any desired extent, so

as to bring the bearing face or line of the rollerto coincide with theplane of the upper surface of the board to be dressed. Thus if the twofaces of the board are to be parallel and the board is to be an inch inthickness when dressed, the roller D is set so that its bearing edgewill be exactly parallel to the table and one inch above thecutting-plane of the knives, and the board is then passed along thetable and subjected to the action of the knives, when its lower facewill be cut to a true plane out of wind and absolutely parallel to theupper face.

If the board is to be cut tapering-that is, if one edge of the board isto be thicker than the otherthe roller D is set at an angle tocorrespond to the plane of the upper face and at such a distance fromthe cutting-plane of co the cutter as will correspond to the desiredthickness of the dressed board. The board is then passed along thetable, when it will be planed upon the under side and after beingreversed will be planed upon the opposite side to the desired thickness,true to gage, and out of wind for its entire length.

In order to keep the end of the board as it is passed toward the knivesfirmly in position against the bearing edge of the roll D,I make use ofa presser-roll 0, supported by a frame 6, movable vertically in suitableguides and connected to a treadle 7, so that the operator can by thepressure .of his foot force the roll 0 upward against the under side ofthe board and hold the latter firmly against the roll D until the end ofthe board takes its bearing upon the platform 1. Any other desired meansfor lifting the pressure-roll C may be employed-as, for instance, atoggle and hand-screw, as shown in dotted lines, Fig. 1. Any suitablemeans may be employed for supporting and adjusting the ends of the rollD, and I will now describe one arrangement which I have found to beefiective. The machine is provided with a guide-plate D at one side ofthe table, which guide-plate may be bolted to or form part of the mainframe of the machine, or,.as shown, may be connected to the movabletable 2. In order to adapt my 0 invention to machines already in use,the guide D is preferably constructed with attachments inthe form ofperforated lugs or cars 7, or otherwise, for connecting it to the tableof the ordinary machines. The guide 5 D is provided with a suitablesupport for a vertically-adjustable bearing for one end of the roller D.Thus a dovetailed channel a; extends vertically along the inner face ofthe guide, and in this channel slides a re- I00 frame swings uponhorizontal trunnions 12 12, a block receiving one of the journals of theroller D, said block accommodating itself to the inclination of theroller as the frame 9 is raised and lowered. The screw 10 turns in a nut13, provided with a threaded stem 14, extending through a vertical slot15 in the guide-plate and carrying a hand-nut 16, which serves to securethe device in any position to which it may be adjusted along the slot15. The construction described permits the roller-bearing to siredextent or wholly detached, together with the roller when necessary. Theopposite bearing of the roller is constructed inlike manner to bevertically adjustable in a bracket 17 by means of a screw 18, thebracket 17 being preferably constructed for attachment to mav chinesalready in use.

As the elevation of the table2 would lift the Y lower edge of the guideD above the face of: the table 1, I provide the guide D with a movablesection 19, which may rest upon the face of the table 1, whatever may bethe elevated position of the other'portion of the guide. Thus the arm 21of the guide D has alongitudinal vertical slot 1 to receive the Web 22of the section 23, bolts 24 passing through slots in the web and to thearm 21. Anyothersuitable means of connecting the movable section 19 withthe arm 21 of the guide D may be employedas, for instance, pivoted links26, slotted to receive the bolts 24, as shown in Fig. 4.

Insteadof the single roller D, tworollersD 'D arrangedin the same plane,may be carried by the movable end bearin gs, as shown in Fig. 6. Thissecures a better bearing for the strip or board.

Without limiting myself to the precise construction and arrangement ofparts shown, I claim 1. The combination,in a planing-machine,

screw 10, and in the said.

be lifted to any d-eof a revolving cutter turning in fixed bearin gsbelow the table, and a transverse roller arranged adjacent to the cutterabove the table, and means for independently adjusting positively theopposite ends thereof and for securing the same in fixed positions afteradjustment to act as a guide to hold the board in its position inrespect to the cutter, whatever may be the inclination of the uppersurface of the board, substantially as set forth.

2. The combination, with the table, the bearing-roller, and the cutterof a hand-planer, of a guide D, supporting the vertically-adjust ablebearing for one end of a transverse roller and having a vertical slot15, a nut having a stem extending through said slot and means forsecuring the same in different positions, and ascrew l0,extending-through the nut and connected Wit-h the roller-bearin g,substantially as set forth.

3. The combination of the bearing-roller, the cutter, the upper platform1, the movable platform 2, and the guide D, connected with the movableplatform and provided with a section vertically movable and bearing uponthe other platform, substantially as described.

4. The combination, with the platform and the cutter ofa hand-planer, ofthe supports on the opposite sides of the planer, an adjustable bearingon each side of the planer, mounted upon the said supports, andthe tworollers D D arranged in the same plane and both on the same side of theboard being planed and both rollers having their trunn-ions or shaftsmounted in the same bearings, substantially as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ISAAC I-I. VENN.

